Unwanted facial and body hair is a common problem that can be a source of distress for both men and women. Dermatologists use lasers and light sources to safely and effectively treat larger areas of unwanted hair with minimal patient discomfort and fewer complications than other hair-reduction methods. Most lasers are equipped with a cooling device that reduces the discomfort from the laser light and also protects the top layer of skin from excessive heating and potential changes in pigmentation.
The primary goal of this procedure is to damage the hair follicles, thereby inhibiting or delaying future hair growth. It is a popular method for individuals who are looking for a more long-term solution to manage unwanted hair on various parts of the body.
Here's a brief overview of how laser hair reduction works:
- Principle of Selective Photothermolysis: The laser emits a concentrated beam of light that is absorbed by the pigment (melanin) in the hair follicles. The light energy is converted into heat, selectively damaging the hair follicle without affecting the surrounding skin.
- Hair Growth Cycle: Hair grows in different phases, including an active growth phase (anagen), a transitional phase (catagen), and a resting phase (telogen). Laser hair reduction is most effective during the anagen phase when the hair follicle is actively producing hair.
- Multiple Sessions: Since not all hair follicles are in the same growth phase at the same time, multiple sessions are usually required to target hair follicles in various stages of growth. The number of sessions needed depends on factors such as the area being treated, the color and thickness of the hair, and individual characteristics. But in general, most body areas take 5-8 treatments for adequate hair reduction.
- Treatment Areas: Laser hair reduction can be performed on various body parts, including the face, legs, arms, underarms, bikini line, and other areas with unwanted hair growth.
Benefits of laser hair reduction include:
- Long-Term Results: Many people experience a significant reduction in hair growth, and some may achieve long-term hair removal. The percentage of hairs removed per session varies by location on the body, with thinner-skinned areas (e.g., armpits and bikini area) generally responding better than thick-skinned areas (e.g., back and chin).
- Precision: Laser technology can selectively target dark, coarse hairs while leaving the surrounding skin undamaged. About 10 percent to 25 percent reduction in hair growth can be expected with each treatment. The hair that regrows following treatment tends to be lighter and finer in texture.
- Speed: Each pulse of the laser takes only a fraction of a second and can treat multiple hairs simultaneously. Smaller areas, such as the upper lip, can be treated in less than a minute, while larger areas may take longer.Â
